So if what your saying is correct... I could have a pool with a TDS of 8000ppm that will be just as easy to maintain, as a pool with a TDS of 800ppm?? I know for a fact the pool with 8000ppm will require more MA and Chlorine than the pool with a TDS of 800pm. Like I said "each pool will be different based on many of variables. We serviced a pool that had a TDS of over 6000ppm and it required 14 gallons of chlorine and 9 gallons of acid a month. After lowering the TDS below 500ppm, this pool only required 1-2 gallons of chlorine a month and 1/2 gallon of acid a month.